Jeb Bush’s campaign should be studied, dissected and analyzed, then documented and hung in the campaign Hall of Shame for future campaigns to know what not to do.

The latest poll, conducted after last week’s third GOP debate in which Bush delivered a mediocre performance, just 4 percent of Republican and independent Republican-leaning voters said they would support Bush in their state’s primary. In the September survey, Bush earned 10 percent, trailing Trump, Carson and Carly Fiorina. And in terms of favorability, no one polled lower than Bush, at a net-negative of 33 points. Just 25 percent of all registered voters surveyed said they had a positive opinion of him, while 58 percent said they had a negative one.

For its part, the Bush campaign has tried to manage expectations among the media.

“FYI political press corps. Jeb’s going to have a few weeks of bad polls,” campaign communications director Tim Miller tweeted Monday. “Comebacks take time, we recognize and are prepared for that.”